Spindle



J. J. PICHETTE Feb. 3, 1931.

SPINDLE Filed Dec. '7. 1928 INVENTOR.

.7b/7n .IPIC/waffe.

ATTORNEYS.

.- connection between the spindle and the bob- 30, spindle comprises a blade 10'having a whirl Patented Feb. 3, 1931 f Fig. 2 is a sectional side elevation of the 'A in the drawings in which TES- L y A1,790,835

YJOHN J. PICHETTEOF winner'NsvlILnia MASSACHUSETTS., :Il A

SPINDLE Appncation med December 7,1928.' seriai No. 324,389.v

This invention relates to a spindle on which It is customary to mount a bobbin on a Y 5 vertical spindle and to rotate the spindle andl bobbin at high speed, the driving engagement frictional.

It is the object of my invention to provide an improved form of friction driving bin. by which the bobbin will be accurately 'i centered and eect-ively rotated.

` My invention further relates to arrangey ments and combinations of Vparts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown spindle embodying my improvements;

spindle and friction driving connection;

Figs. 3 and 4 are front and side elevationsy respectively fof one of theseparate driving` y members, and Y Fig. 5Ais a detail sectionalview taken along A Y the 1in@ l5 5 in Fig. a.

Referring to the drawings, my improved 11- fixed thereon, said whirl being Vformed with an upwardly projecting Vsleeveportion 1 2 and with an annular groove 13 formed in the upper surface of the whirlon which surface the bobbin is supported.

A casing member 15 is secured on the blade' Vpressed to the section shown in Fig. 5. with a middle bobbin-engaging portion L21 and with Yside flanges 22. An upward extension 23 of each member 20 is bent rearward and downward as indicated in Figs. 2 and 3.

The driving members 20 are preferably formed of resilient sheet steeland theniembers 23 constitute spring elements which yieldingly engage the blade `10 and force the members Y20 outward, such outward move.-

`ment being limited byengagement of the side V iianges 22 with theinner surfaces of thefdeof the spindle with the bobbin being entirely D pending'arms 16 of the casing 15.

. i n win 'be understeoafthat tiie-.envmgrmembers v20 areplaced withinthecasing 15 before thecasing is assembled kwith the whirl 11 onf the bladeylO. The lower ends ofthe armsl and of thedrivingmembers 20 are positioned yin the groove 13 and are centered thereby".v Y Whenabobbin is placed on the spindle, the

innerV wall ofthe 'bobbin' will enga-gie the out- 1i wardly projecting members 20, forcingthem inward4 al certain Ydistance against theoutj 20 therebyg'jproviding-)a frictionalxdriving Fig: 1 is a side elevation of parts of a is effective and reliable infuse;v .f

limitedL tor Vthe details hereinv disclosed otherT claim is 1. In a spindle, a blade, a whirl, a casing mounted on said blade above said whirl and having a plurality of elongatedside openings,kv and a lseparate'A outwardly 'spring-pressed driving member4 mounted in each opening and supported onk said whirl, each driving v member having an inner integral spring por tion depending'from its upper end portion `f and yieldingly engaging said blade.

"extremely simple, while Vat the .same timeit Vso l i wise thanas set forth inthe claims but what I 2.V In a spindle', a blade, a whirl, acasing 5 mounted on said bladeabove said whirl and having a plurality ofelongated side openings, and a separate outwardly spring-pressed c driving `member mounted in each opening and supported on said whirl, each-driving n Y member being formed of a single piece of thin sheet steel and having an inner spring ,por-.y tlon forming an integral pro] ection at one end" of said member and bent to extend reversely alongside said member and to yieldingly engage said spindle blade.

8. In a spindle, a blade7 a whirl, a Aeasing mounted on said blade above said whirl and having a plurality of elongated side openings, and a separate outwardly springpressed driving amember mounted in each opening and supported on said whirl, each driving member being formed ofa single" piece of thin sheet steelandihavingianntegral inner spring portion engaging said spindle blade and having side portions vengaging said 'casing to limit outward movement of said driving member.

4. In a spindle, a bladea-whirl, a easing (mounted on said blade above said whirland 4having a pluralityT of elongated.sideopenings,

and ak separate outwardly springgpressed driving member'. mounted Lin :each opening andsupported onsaid whirl, eaehdriving member being formed ofv'a singlepiece oftliin sheet steel kand having ank kintegral vinner springportion engaging said-spindle blade Y and having side `portions .engaging said oasing to limit outward movemetofzsai'ddriving member andhaving allongitudinalzcenter gportionk proj eating: outward through the associated vcasing opening toengagethe:v inner =wall ofabobbin' .supportedon said spindle.

5.111 a spindle, a..blade, a whirl,a."casing `mounted on said bladerabovesaid whirl and j having aiplurality of elongatedsideopenings,:and a driving memberrmountedin eaeh of said openingsand -projeeting outward) .therethrough .to engage .the innerwall'of a ".bobbin supported on saidspindle; each driv- -:.ing member vhaving .side portions .limiting voutward movement thereof and .having van upward :extension vbent vrearward and down- Vward tolforma springtongueyieldinglyengaging said spindle blade. y Y

Invtestimonywhereof I have `hereunto affixed mysignature.

- lJoHvNfJ. momma 

